/****************************************************************************
**
** This file is part of the LibreCAD project, a 2D CAD program
**
** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software 
** Foundation and appearing in the file gpl-2.0.txt included in the
** packaging of this file.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
** 
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
**
** This copyright notice MUST APPEAR in all copies of the script!  
**
**********************************************************************/

#ifndef RS_ACTIONDRAWLINERELANGLE_H
#define RS_ACTIONDRAWLINERELANGLE_H

#include "rs_previewactioninterface.h"

class RS_Vector;

/**
 * This action class can handle user events to draw lines with a given angle
 * to a given entity.
 *
 * @author Andrew Mustun
 */
// fixme - add line snap mode (start/end, middle)
class RS_ActionDrawLineRelAngle:public RS_PreviewActionInterface {
    Q_OBJECT
public:
    RS_ActionDrawLineRelAngle(
        RS_EntityContainer &container,
        RS_GraphicView &graphicView,
        double angle = 0.0,
        bool fixedAngle = false);
    ~RS_ActionDrawLineRelAngle() override;
    RS2::ActionType rtti() const override;
    void finish(bool updateTB) override;
    void mouseMoveEvent(QMouseEvent *e) override;
    QStringList getAvailableCommands() override;
    void setAngle(double a){angle = a;}
    double getAngle() const{return angle;}
    void setLength(double l){length = l;}
    double getLength() const{return length;}
    bool hasFixedAngle() const{return fixedAngle;}
protected:
    enum Status {
        SetEntity,     /**< Choose entity. */
        SetPos,        /**< Choose position. */
        SetAngle,      /**< Set angle in console. */
        SetLength      /**< Set length in console. */
    };
    /** Chosen entity */
    RS_Entity *entity = nullptr;
    /** Chosen position */
    std::unique_ptr<RS_Vector> pos;
    /**
     * Line angle.
     */
    double angle = 0.;
    /**
     * Line length.
     */
    double length = 10.;
    /**
     * Is the angle fixed?
     */
    bool fixedAngle = false;
    LC_ActionOptionsWidget* createOptionsWidget() override;
    RS2::CursorType doGetMouseCursor(int status) override;
    void onMouseLeftButtonRelease(int status, QMouseEvent *e) override;
    void onMouseRightButtonRelease(int status, QMouseEvent *e) override;
    bool doProcessCommand(int status, const QString &command) override;
    void onCoordinateEvent(int status, bool isZero, const RS_Vector &pos) override;
    void updateMouseButtonHints() override;
    void doTrigger() override;
};

#endif
